This automatically overlaps all muffin-tins to a specified maximum value (default folpx=1.15) to reduce the effects of potential discontinuities at the muffin-tins. Automatic overlapping is done by default and is useful in highly inhomogeneous materials. Typical values of the overlapping fraction should be between 1.0 and 1.3. See FOLP for a non-automated version. Automatic overlapping is done by default; to switch overlapping off, use 1.0 as the argument for AFOLP.
  * touching muffin-tins; do not use automatic overlapping
  AFOLP  1.0